Water-heater.



mmwmmm WATER HEATER.

APPLICATION FILED FEB. 13,1 909.

95$,87', Patented M31222, 1910.

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WATER- HEATER.

APPLICATION FILED PEB.13,1909.

Patented Mar. 22, 1910.

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CHRISTOPHER C. BURGENER, OF GALION, OHIO.

WATER-HEATER.

Specification of Letters Patent.

Patented Mar. 22, 1910.

Application filed February 13, 1909. Serial No. 477,714.

\Vater-Heaters, of which the following is a specification, referencebeing had therein to the accompanying drawing.

This invention relates to improvements in water heaters and moreparticularly to that type in which the heating of the water is effectedthrough the medium of a coil or coils which are positioned in the firebox of a furnace. The object of the present invention is the provisionin a heater of this character of a plurality of sections or coils whichare so positioned in the fire box as to afford a large direct heatingsurface and which are of such construction that any of such coils orsections may at any time be removed independently of the other.

A further object of the present invention is the provision in a furnaceof this character in which a plurality of sections or coils areinterposed between the distributing dome and return header, which coilsare arranged in the upper part and at the sides of the fire box of thefurnace, the coils being so arranged and constructed that a perfectcirculation is obtained through all of them at all times.

A further object of the invention is the provision of a water heater ofthis type in which the several sections or coils are connected to thedistributing dome and header by couplings of such construction that anyof said sections may be at any time removed without disturbing theremaining sections.

Other objects of the invention will be apparent from the detaileddescription hereinafter when read in connection with the accompanyingdrawing forming a part hereof wherein a. convenient embodiment of theinvention is illustrated and wherein like numerals of reference refer tosimilar parts in the several views.

In the drawings, Figure 1 is a longitudinal section of my improved waterheater, and Fig. 2 is a transverse section of the same.

Referring now more particularly to the drawings A designates a furnacewhich may be of any convenient type but which is preferably formed withmasonry side and rear walls, the interior of the furnace being formed ofside and rear walls of fire brick, which are spaced from the side andrear ex terior walls so as to form an air space therebetween. Thefurnace is provided with a grate of any desired type and with the usualmetallic front having doors of any suitable construction therein toafford access to the fire box and ash pit of the furnace.

Positioned within the upper part of the fire box of the furnace is adistributing dome B, from which extend the usual pipes to the system. Aflue B extends from the interior of the furnace through the distributingdome B to permit the escape of the products of combustion. Positionedwithin the upper portion of the fire box of the furnace andsubstantially filling the same are a plurality of sections C, each ofwhich is adapted to be connected at one end to the distributing dome andat its other end to the usual re turn header D of the system which ispositioned outside of the furnace and below the fire box thereof.

The sections C, which are uniform in size and construction, eachcomprises a plurality of looped coils, which extend substantially fromthe front to the rear of the fire box of the furnace, the severalsections being arranged side by side and in close proximity to eachother so that all of the coils thereof will be subjected directly to theheat of the fire. The uppermost pipe of each of the sections C, with theexception of the two sections which lie directly along side of the sidewalls of the fire box, have their outer ends threaded into elbowcouplings E, which are in turn connected by suitable couplings F withthe distributing dome B. The couplings employed for this purpose arepreferably short pipes, the opposite ends of which are oppositelythreaded so as to engage threaded openings in the distributing dome Band the elbow couplings E. By using couplings of this type it will beseen that packed joints are obviated, and as each coupling pipe has itsends oppositely threaded, it will be seen that by rotating the same anyone of the sections C may be readily disconnected from the distributingdome B. The lowermost pipe of each of the sections C, with the exceptionof the two sections which lie directly along side of the side walls ofthe fire box, extend rearwardly through the back walls of the furnaceand are connected by suitable pipe joints with downwardly extendingpipes G, the lower ends of which are detachably connected by means ofsuitable couplings G with the return header D. The couplings Grpreferably comprise tubular nuts, which are interiorly threaded at theupper ends thereof to engage external threads on the lower ends of thepipes G, and exteriorly threaded at their lower ends to engage threadedapertures in the return header D. The upper pipes of the sections Cwhich lie along side of the side walls of the fire box have theirforward ends threaded into T couplings H, the upper arms of which areconnected to the distributing dome B by couplings similar inconstruction to the couplings F heretofore described, the lower pipes ofsaid sections being extended rearwardly through the back wall of thefurnace and connected by suitable pipe oints with downwardly extendingpipes I, the lower ends of which are connected to the return header D bycouplings similar in construction to the couplings Gr heretoforedescribed. Positioned along side of the side walls of the fire box ofthe furnace and directly below the two outermost sections C, are twosections J, which are similar in size, form and construction with thesections C heretofore described. The upper pipes of the sections J havetheir forward ends threaded into elbow couplings K, the upwardlyextending arms of which are detachably connected to the downwardlyextending arms of the T couplings H, heretofore described, by means ofpipes L. The lower pipes of the sections J extend rearwardly through therear wall of the furnace and are detachably connected by suitable pipecouplings with the downwardly extending pipe I heretofore referred to.

From the above construction, it will be seen that a plurality of pipesections of similar form and construction are utilized to completelyfill the upper portion of the fire box and to lie alongside of the sidewall of the fire box, so that all the heat in the fire box iseffectively utilized, and as the distance which the water must travelfrom the return header to the distributing dome is the same in everysection, it will be obvious that a perfect circulation will bemaintained in all the sections.

It will also be apparent from the above described construction that anyone of the coils or sections may be disconnected from the distributingdome and return header without disturbing any of the other sections.

While a convenient embodiment of the invention is illustrated in theaccompanying drawings, it will be obvious that many changes may be madeto the form therein shown without departing from the spirit and scope ofthe invention as defined in the appended claim.

I claim:

In a water heater, the combination with a fire box of a furnace, adistributing dome and return header, a plurality of coil sectionsarranged side by side in the upper portions of the fire box, pipes fordetachably connecting each of said coil sections with the distributingdrum and return header, a pair of lower coil sections of the same sizeas the upper coil sections positioned therebeneath at the sides of thefire box, and pipes detachably connecting each of said lower coilsections with the inlet and outlet pipes of the coil sections positioneddirectly thereabove, whereby the distance from the return header to thedistributing drum through each of the coils is the same.

In testimony whereof I aflix my signature in presence of two witnesses.

CHRISTOPHER C. BURGENER.

Witnesses:

LEWIS KLAPMAN, CARL J. GUGLER.

